Surgery provides final therapy for patients with primary hyperparathyroidism. Once the diagnosis is established, the outcome of surgery depends on the surgeon's experience and judgment. Our experience with 523 procedures (including 31 reoperations) performed from the beginning of 1994 to the end of 2004, have proved that complicated cases, including reoperations, should be concentrated in clinics with sufficient surgcial experience, rating hundreds of the cases.

        Key words: parathyroids – primary hyperparathyroidism – parathyroidectomy – reoperation